Printer&#39;s blanket



Aug. 7, E923. 1464,4

A.. 1F. DECKER FBINTERS BLANKET Filed Sept. 16. 1922 fitto: n

Patente Aug.. 7, 1923,

.AMMIEL 1F. DECKER, 01E' ?E.`[.|H.Alt[,` NEW YORK.

PRINTERS BLANKET.

Application filed September 18, 1922. Serial No. 588,738.

To all whom it may concer/n.'

Be it known that l, AMMInL lF. Dncknn, a citizen of the United States, residing at Pelham, in the county of Westchester and State of New York, have invented certain new and useful improvements in Printers Blankets, of which the following is a speciiication.

'lhe present invention relates to improvements in printers blankets, and more particularly to blankets of the type disclosed in my Patent No. 1,004,385, granted September 2c, 1911.

Articles of the character indicated must possess a certain degree of fiexibility and resiliency and, in addition, must be capable of resisting the disinte rating action of printers ink. ln my a oresaid patent, l have described a form. of blanket comprising a body composition, preferably consisting of ground cork and a binder of resin, linseed oil and gum1 faced on opposite sides with fabric or other suitable material. Such blankets, while satisfactory in the initial stages of their use, have, nevertheless, a tendency to soon dry out and lose their resiliency when subjected to use in a dry climate and, in like manner, soon harden and crack or break in a cold climate, so that their period of effective life may, therefore, be substantially reduced by reason of atmospheric and climatic conditions.

lt is the object of this invention to overcome the objections stated, by producing a blanket which shall retain its flexibility and resiliency without regard to cold or dryness and which, moreover, shall possess a greater degree of durability and a proportionately longer life.

According to4 my invention, ll employ ground cork as the base of the body composition, as in the earlier form, and ll may also use resin and gum. l3nt instead of using linseed oil, which is a drier, with the cork, resin and gum, or with the cork alone, I employ a non-siccative oil, preferably castor oil, which has the eect of preventing the composition from drying out, and which also acts as an emollient. l also use the socalled nitrated cotton or other commercial form of nitro-cellulose in a dissolved state, the preferred solvent being ethylacetate, though other suitable solvents may, of course, be substituted.

The substances or ingredients mentioned above are intimately mixed together in Suitable proportions which, however, may be varie at will according to conditions, the cork predominating as will be understood. ln this connection, ll desire to state that ll am aware that both nitrocellulose and castor oil have been used together in the manufacture of printers blankets, but lonly as a distinct surfacing layer at one or both sides of the bod whereas lt expressly mix both the nitrocellulose and the castor oil with the other ingredients to form the body itself, and because of this thorough admixture of the several ingredients, ll prevent the body from cracking or breaking and from beoom` ing hard or dry, or both, while still maintaining its requisite oiland ink-proof quality.

After the composition has been pre ared, it is preferably spread on a strip o suitable facing material, or spread or fed between two such strips or sheets, and is then subjected to sufficient ress ure, by passing it between rolls or ot erwise, to actually force the composition to enter the meshes, pores or interstices of the facing strip or strips. After this, it is left to set or season, the time required depending upon .various factors which in themselves are immaterial to the invention. The facing strip or strips may, and in most cases will, consist of wool, cotton, linen, jute or other fabric; but under certain conditions, strips or sheets made of various other substances such as paper, asbestos, ground slate, metal, rubber, etc., may also be utilized, so that the terms facing or facing sheet herein employed are eX- pressly used in a generic sense. Moreoven the facing or facings may be suitably coated for ornamental or other purposes, and where special strength is desired, a reinforcement in the form of wire netting or other material may be used and may constitute one of the facings or may be embedded in the body composition; or a coating of adhesive material may be applied to one or both sides of the body composition and a suitable facing affixed thereto.

The accompanying drawing shows, on a greatly enlarged scale, a cross section of a blanket constructed in accordance with the invention, the component parts of the blanket being indicated by appropriate labels.

While the invention, as above disclosed, is primarily a printers blanket and has been so described, it will be nevertheless appartbl) utilized) as well as of boxes, desk tops, trunks, traveling ba s, etc where other reinforcement materia would be advisable.

. one face thereof.

I claim:

1. A printers blanket or the like, having a body comprising an intimate mixture of ground cork, castor oil and dissolved nitrocellulose.

2. A printerrs blanket or the like, havin a body comprisin a mixture of roun cork, castor oil an dissolved nitroce lulose; said body having a facing applied to at least 3. A printerfs blanket or the like, havi a. body comprising an intimate mixture o ground cork, castor oil and dissolved nitro- 20 cellulose; and a facing applied to at leest one slde of said body and united thereto by pressure so that the body composition penetrates said facin 4. A printersilanket or the like, hav' 25 composition is forced into and fills the 30 meshes of the netting.

In testimony whereof I alx my signature.

AMMIL F. DECKER. 

